Basic in c programming.

Basic in c programming. 

1 st I write a program after analysis the code, that witch code how work ?

Sum between 2 number.

#include<stdio.h>
int main() 
{
   int a,b,sum;
   printf("Enter the value of a ");
   scanf("%d",&a);
   printf("Enter the value of  b");
   scanf("%d",&b);
   sum= (a+b);
   printf("Sum is %d", sum);
   getch();
   return 0;
}

Analysis:

#include<stdio.h>  is header file. stdio.h for basic input output.
int main()    this is main function and you have to write code in the "{}".
int for integer data type.
a.b.sum is veriable.
printf() for output.
scanf() for input.
getch() for program window stay till you close the window.

Hope it will help you.